Cause of obesity
Problem of obesity
What is BMI?
What is morbid obesity?
Metabolic Syndrome
Options of weight reduction

What is BMI?
BMI (body mass index) is a screening tool used to measure weight relative to height.
While BMI does not measure body fat directly, it has been shown to correlate to measures
of body fat, and is considered an accurate alternative for body fat measurement. With a
simple formula, you can calculate your own BMI.

How Is BMI Calculated?
To calculate your BMI, you will need to divide your weight in kilogram by your height in meter squared.
The formula is:
BMI = Body weight (kg) / Body height^{2} (m^{2})
For example, if you weigh 80kg with a height of 165cm, your BMI will be 29.4 kg/m^{2}


BMI Calculator


What Does the BMI Number Mean?
Your BMI will place you in one of the following categories:

BMI (kg/m^{2})
體重指數 
Risk of comorbidities
肥胖相關的發病風險 
Waist circumference
腰圍 
< 90cm (M
男)
< 80cm (F 女) 
> 90cm (M
男)
> 80cm (F 女) 
Normal weight
正常體重 
18.2  22.9 
Average
一般 
Increased
增加 
Overweight
過重 
> 23 


At risk
危險期 
23  24.9 
Increased
增加 
Moderate
中度增加 
Obese I
肥胖 
25  29.9 
Moderate
中度增加 
Severe
嚴重增加 
Obese II
嚴重肥胖 
>30 
Severe
嚴重增加 
Very Severe
非常嚴重增加
(病態型肥胖) 

